{"id":"vidhyamitra:city-day:perth:2174-05-31:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2174-05-31","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2174-05-31","date_display":"May 31, 2174 CE","panchanga":{"method":"Sūrya Siddhānta + Bhāskara-II iterative manda + Kerala-school (Mādhava-Nīlakaṇṭha) evection + variation + annual equation","engine_version":"2.0 (Kerala-school enhanced)","accuracy_note":"Sub-degree on Moon at any Kali-Yuga date (~2-5° residual max)","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":2174,"month":5,"day":31,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2515247.770833,"kali_year":5276,"ahargana":1926782.2708,"sun":{"sidereal_longitude":43.0447,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":48.3153,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":5.2706,"elapsed_within_tithi_degrees":5.2706},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3,"moon_longitude":48.3153,"elapsed_within_degrees":8.3153},"yoga":{"number":7,"name":"Sukarma","sum_longitude":91.36},"karana":{"half_tithi_index":0,"name":"Kiṃstughna"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"sky":{"method":"Sūrya-Siddhāntic Bhāskara-II 4-step iteration with atan2-based śīghra + varying peripheries + lunar latitude","engine_version":"3.0 (Pūrṇa — complete SS implementation)","tradition_sources":"Āryabhaṭīya 499 CE → SS Ch.1-5 Burgess 1860 → Siddhānta-Śiromaṇi Bhāskara II 1150 → Tantrasaṅgraha Nīlakaṇṭha 1501","input":{"year":2174,"month":5,"day":31,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2515247.770833,"ahargana":1926782.2708,"kali_year":5276,"ayanamsa_lahiri":26.2894,"grahas":{"sun":{"sidereal_longitude":43.56019600000002,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":46.869996000000015,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3},"retrograde":false,"latitude":4.4097},"mars":{"sidereal_longitude":219.85579600000005,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":2},"retrograde":true},"mercury":{"sidereal_longitude":17.15179599999999,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":263.115996,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":true},"venus":{"sidereal_longitude":14.184096000000011,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":355.251796,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":329.803,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":149.803,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false}},"panchang":{"method":"Sūrya Siddhānta + Bhāskara-II iterative manda + Kerala-school (Mādhava-Nīlakaṇṭha) evection + variation + annual equation","engine_version":"2.0 (Kerala-school enhanced)","accuracy_note":"Sub-degree on Moon at any Kali-Yuga date (~2-5° residual max)","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":2174,"month":5,"day":31,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2515247.770833,"kali_year":5276,"ahargana":1926782.2708,"sun":{"sidereal_longitude":43.0447,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":48.3153,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":5.2706,"elapsed_within_tithi_degrees":5.2706},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3,"moon_longitude":48.3153,"elapsed_within_degrees":8.3153},"yoga":{"number":7,"name":"Sukarma","sum_longitude":91.36},"karana":{"half_tithi_index":0,"name":"Kiṃstughna"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.41,"elongation":5.271},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.41,"opposition_distance":174.729}},"eclipse_window_40days":[]},"city":{"slug":"perth","name":"Perth, Australia","lat":-31.9505,"lon":115.8605,"tz_offset_hours":8,"country":"AU","tier":"diaspora"},"tier2":{"city":{"slug":"perth","name":"Perth, Australia","lat":-31.9505,"lon":115.8605,"tz_offset_hours":8,"country":"AU","tier":"diaspora"},"sunriseLocal":"07:08","sunsetLocal":"17:20","solarNoonLocal":"12:14","dayLengthHours":10.206985382787588,"dayLengthDisplay":"10 Hours 12 Mins 25 Secs","nightLengthDisplay":"13 Hours 47 Mins 35 Secs","moonriseLocal":"07:24","moonsetLocal":"17:31","rahuKala":{"name":"Rāhu Kāla","start":"14:47","end":"16:04","startHours":14.786053566394566,"endHours":16.061926739243013,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:41","end":"10:58","startHours":9.682560875000771,"endHours":10.95843404784922,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:14","end":"13:31","startHours":12.23430722069767,"endHours":13.510180393546117,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:31","end":"09:51","startHours":9.512444451954313,"endHours":9.852677298047231,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:33","end":"07:50","startHours":7.556105586920024,"endHours":7.82829186379436,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:54","end":"12:34","startHours":11.894074374604749,"endHours":12.57454006679059,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:46","end":"06:27","startHours":5.769883144932196,"endHours":6.450348837118035,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:17","end":"07:08","startHours":6.280232414071575,"endHours":7.1308145293038745,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:56","end":"14:37","startHours":13.935471451162266,"endHours":14.615937143348106,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:08","end":"17:32","startHours":17.137799912091463,"endHours":17.53779991209146,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:20","end":"17:46","startHours":17.337799912091462,"endHours":17.763090969707612,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:05","end":"18:50","startHours":17.087799912091462,"endHours":18.837799912091462,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:54","end":"00:34","startHours":23.89407437460475,"endHours":24.57454006679059,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"07:08","end":"08:24","startHours":7.1308145293038745,"endHours":8.406687702152324,"quality":"inauspicious"},{"name":"Udveg","start":"08:24","end":"09:41","startHours":8.406687702152324,"endHours":9.682560875000771,"quality":"inauspicious"},{"name":"Chala","start":"09:41","end":"10:58","startHours":9.682560875000771,"endHours":10.95843404784922,"quality":"neutral"},{"name":"Labha","start":"10:58","end":"12:14","startHours":10.95843404784922,"endHours":12.23430722069767,"quality":"auspicious"},{"name":"Amṛta","start":"12:14","end":"13:31","startHours":12.23430722069767,"endHours":13.510180393546117,"quality":"auspicious"},{"name":"Kāla","start":"13:31","end":"14:47","startHours":13.510180393546117,"endHours":14.786053566394566,"quality":"inauspicious"},{"name":"Śubha","start":"14:47","end":"16:04","startHours":14.786053566394566,"endHours":16.061926739243013,"quality":"auspicious"},{"name":"Roga","start":"16:04","end":"17:20","startHours":16.061926739243013,"endHours":17.337799912091462,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"17:20","end":"19:04","startHours":17.337799912091462,"endHours":19.061926739243013,"quality":"inauspicious"},{"name":"Śubha","start":"19:04","end":"20:47","startHours":19.061926739243013,"endHours":20.786053566394564,"quality":"auspicious"},{"name":"Roga","start":"20:47","end":"22:31","startHours":20.786053566394564,"endHours":22.510180393546115,"quality":"inauspicious"},{"name":"Udveg","start":"22:31","end":"00:14","startHours":22.510180393546115,"endHours":24.23430722069767,"quality":"inauspicious"},{"name":"Chala","start":"00:14","end":"01:58","startHours":24.23430722069767,"endHours":25.95843404784922,"quality":"neutral"},{"name":"Labha","start":"01:58","end":"03:41","startHours":25.95843404784922,"endHours":27.68256087500077,"quality":"auspicious"},{"name":"Amṛta","start":"03:41","end":"05:24","startHours":27.68256087500077,"endHours":29.406687702152325,"quality":"auspicious"},{"name":"Kāla","start":"05:24","end":"07:08","startHours":29.406687702152325,"endHours":31.130814529303876,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:08","end":"08:08","startHours":7.1308145293038745,"endHours":8.130814529303874,"planetary_lord":"Mars"},{"name":"Hora 2","start":"08:08","end":"09:08","startHours":8.130814529303874,"endHours":9.130814529303874,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"09:08","end":"10:08","startHours":9.130814529303874,"endHours":10.130814529303874,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"10:08","end":"11:08","startHours":10.130814529303874,"endHours":11.130814529303874,"planetary_lord":"Moon"},{"name":"Hora 5","start":"11:08","end":"12:08","startHours":11.130814529303874,"endHours":12.130814529303874,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"12:08","end":"13:08","startHours":12.130814529303874,"endHours":13.130814529303874,"planetary_lord":"Venus"},{"name":"Hora 7","start":"13:08","end":"14:08","startHours":13.130814529303874,"endHours":14.130814529303874,"planetary_lord":"Sun"},{"name":"Hora 8","start":"14:08","end":"15:08","startHours":14.130814529303874,"endHours":15.130814529303874,"planetary_lord":"Mars"},{"name":"Hora 9","start":"15:08","end":"16:08","startHours":15.130814529303874,"endHours":16.130814529303876,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"16:08","end":"17:08","startHours":16.130814529303876,"endHours":17.130814529303876,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"17:08","end":"18:08","startHours":17.130814529303876,"endHours":18.130814529303876,"planetary_lord":"Moon"},{"name":"Hora 12","start":"18:08","end":"19:08","startHours":18.130814529303876,"endHours":19.130814529303876,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"19:08","end":"20:08","startHours":19.130814529303876,"endHours":20.130814529303876,"planetary_lord":"Venus"},{"name":"Hora 14","start":"20:08","end":"21:08","startHours":20.130814529303876,"endHours":21.130814529303876,"planetary_lord":"Sun"},{"name":"Hora 15","start":"21:08","end":"22:08","startHours":21.130814529303876,"endHours":22.130814529303876,"planetary_lord":"Mars"},{"name":"Hora 16","start":"22:08","end":"23:08","startHours":22.130814529303876,"endHours":23.130814529303876,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"23:08","end":"00:08","startHours":23.130814529303876,"endHours":24.130814529303876,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"00:08","end":"01:08","startHours":24.130814529303876,"endHours":25.130814529303876,"planetary_lord":"Moon"},{"name":"Hora 19","start":"01:08","end":"02:08","startHours":25.130814529303876,"endHours":26.130814529303876,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"02:08","end":"03:08","startHours":26.130814529303876,"endHours":27.130814529303876,"planetary_lord":"Venus"},{"name":"Hora 21","start":"03:08","end":"04:08","startHours":27.130814529303876,"endHours":28.130814529303876,"planetary_lord":"Sun"},{"name":"Hora 22","start":"04:08","end":"05:08","startHours":28.130814529303876,"endHours":29.130814529303876,"planetary_lord":"Mars"},{"name":"Hora 23","start":"05:08","end":"06:08","startHours":29.130814529303876,"endHours":30.130814529303876,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"06:08","end":"07:08","startHours":30.130814529303876,"endHours":31.130814529303876,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Citrā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Karka","Tulā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Siṃha","Kanyā","Dhanu","Makara"]},"dishaShool":"North (Uttara)","chandraVasa":"South-East","rahuVasa":"North","anandadiYoga":{"name":"Maitra","quality":"Auspicious"},"tropicalRitu":"Grīṣma (Summer) (tropical)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":21.924708975671706,"eotMinutes":2.4995667581397525,"ayanamsa":26.2894}},"calendars":{"vikram_samvat":2231,"vikram_samvatsara":"Sarvajit","saka_samvat":2096,"saka_samvatsara":"Bhāva","bengali_samvat":1581,"malayalam_era":1350,"nanakshahi_year":705,"lunar_month":"Jyeṣṭha","lunar_month_paksha_full":"Jyeṣṭha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Jyeṣṭha","lunar_month_amanta":"Jyeṣṭha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Vṛṣabha (Vaikāsi)","ritu":"Grīṣma (Summer)","display_summary":"Jyeṣṭha Śukla Pratipada · Vikram 2231 Sarvajit · Śaka 2096 Bhāva"},"festivals":[],"todays_walk":{"walk":{"id":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3226-07-09","event":"Bhagavān Krishna's birth at Mathurā","chart_id":"krishna","shared_marker":"same Rohiṇī","url":"/day/-3226-07-09","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"perth"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga May 31, 2174 CE · Perth, Australia · Vidhyamitra","description":"May 31, 2174 CE for Perth, Australia: Śukla Pratipada, sūryodaya 07:08, sūryāsta 17:20.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2174-05-31","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2174-05-31","sa":"https://sa.vidhyamitra.com/city/perth/2174-05-31","hi":"https://hi.vidhyamitra.com/city/perth/2174-05-31","x-default":"https://vidhyamitra.com/city/perth/2174-05-31"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T06:58:13.330Z","verification":{"type":"multi-marker","confidence":"canonical"}},{"pillar":"Vidhyamitra-Tier2","pillar_version":"0.1.0","method":"Spherical astronomy + Lahiri ayanamsa + standard solar declination + EoT correction","retrieved_at":"2026-05-31T06:58:13.330Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T06:58:13.330Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}